Rev limit on ZZ4 w/ LT4 hotcam
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Joined: Sep 2003
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Rev limit on ZZ4 w/ LT4 hotcam
Hi guys,
Motor is a ZZ4 crate, 10.5:1 compression, AL 58cc heads, LT4 hot cam, "high rev springs" (dunno exactly which ones), 1.6 roller rockers, forged crank, pink rods, hypereutectic pistons, LT1 intake, exhaust, injectors, etc.
What would you say the rev limit is on this thing? Only info I could find on the board was for stock 305s.
I'm guessing it's in the neighborhood of 6k?
Motor is a ZZ4 crate, 10.5:1 compression, AL 58cc heads, LT4 hot cam, "high rev springs" (dunno exactly which ones), 1.6 roller rockers, forged crank, pink rods, hypereutectic pistons, LT1 intake, exhaust, injectors, etc.
What would you say the rev limit is on this thing? Only info I could find on the board was for stock 305s.
I'm guessing it's in the neighborhood of 6k?
Joined: Jan 2005
Posts: 10,426
Likes: 497
From: Hurst, Texas
Car: 1983 G20 Chevy
Engine: 305 TPI
Transmission: 4L60
Axle/Gears: 14 bolt with 3.07 gears
Hi guys,
Motor is a ZZ4 crate, 10.5:1 compression, AL 58cc heads, LT4 hot cam, "high rev springs" (dunno exactly which ones), 1.6 roller rockers, forged crank, pink rods, hypereutectic pistons, LT1 intake, exhaust, injectors, etc.
What would you say the rev limit is on this thing? Only info I could find on the board was for stock 305s.
I'm guessing it's in the neighborhood of 6k?
Motor is a ZZ4 crate, 10.5:1 compression, AL 58cc heads, LT4 hot cam, "high rev springs" (dunno exactly which ones), 1.6 roller rockers, forged crank, pink rods, hypereutectic pistons, LT1 intake, exhaust, injectors, etc.
What would you say the rev limit is on this thing? Only info I could find on the board was for stock 305s.
I'm guessing it's in the neighborhood of 6k?
Thread Starter
Junior Member
Joined: Sep 2003
Posts: 35
Likes: 0
Is that going to be limited by the bottom end or the valvetrain? They list the ZZ4 with 1.5 rockers, a smaller cam, and LT4 springs. I'm not sure about the springs, but I know I've got 1.6 rockers and a bigger cam.
If I'm limited by the valvetrain, I assume the 1.6 rockers and cam would send the redline down, correct? Even with the "high rev springs"?
If I'm limited by the valvetrain, I assume the 1.6 rockers and cam would send the redline down, correct? Even with the "high rev springs"?
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